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  <title>The EmptyIterator class</title>
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 <h1 class="title">The EmptyIterator class</h1>
 

 <div class="partintro"><p class="verinfo">(PHP 5 &gt;= 5.1.0, PHP 7, PHP 8)</p>


  <div class="section" id="emptyiterator.intro">
   <h2 class="title">简介</h2>
   <p class="para">
    The EmptyIterator class for an empty iterator.
   </p>
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  <div class="section" id="emptyiterator.synopsis">
   <h2 class="title">类摘要</h2>


   <div class="classsynopsis">
    <div class="ooclass">
     
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    <div class="classsynopsisinfo">
     <span class="ooclass">
      <span class="modifier">class</span> <strong class="classname">EmptyIterator</strong>
     </span>

     <span class="oointerface"><span class="modifier">implements</span> 
       <a href="class.iterator.html" class="interfacename">Iterator</a></span> {</div>

    <div class="classsynopsisinfo classsynopsisinfo_comment">/* 方法 */</div>
    <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><a href="emptyiterator.current.html" class="methodname">current</a></span>(): <span class="type"><span class="type never">never</span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="emptyiterator.key.html" class="methodname">key</a></span>(): <span class="type"><span class="type never">never</span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="emptyiterator.next.html" class="methodname">next</a></span>(): <span class="type"><span class="type void">void</span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="emptyiterator.rewind.html" class="methodname">rewind</a></span>(): <span class="type"><span class="type void">void</span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="emptyiterator.valid.html" class="methodname">valid</a></span>(): <span class="type"><span class="type false">false</span></span></div>

   }</div>


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<h2>目录</h2><ul class="chunklist chunklist_reference"><li><a href="emptyiterator.current.html">EmptyIterator::current</a> — The current() method</li><li><a href="emptyiterator.key.html">EmptyIterator::key</a> — The key() method</li><li><a href="emptyiterator.next.html">EmptyIterator::next</a> — The next() method</li><li><a href="emptyiterator.rewind.html">EmptyIterator::rewind</a> — The rewind() method</li><li><a href="emptyiterator.valid.html">EmptyIterator::valid</a> — The valid() method</li></ul>
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